{"id":"CVE-2026-110726","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-110726","generatedAt":"2026-10-28T00:59:16.602Z","title":"A single attacker can therefore obtain an unlimited number of independent rate-limit buckets — one per unique header value — and completely bypass the gateway's request-rate limiting on every route that uses the shipped default configuration.","description":"In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver, `ClientIpKeyResolver`, derives the per-client bucket key from the leftmost element of the `X-Forwarded-For` request header. That element is supplied by the originating HTTP client and is not validated against any trusted-proxy list. A single attacker can therefore obtain an unlimited number of independent rate-limit buckets — one per unique header value — and completely bypass the gateway's request-rate limiting on every route that uses the shipped default configuration.","published":"2026-10-15T12:16:38.000Z","lastModified":"2026-10-15T16:17:46.000Z","status":"Awaiting Analysis","sourceIdentifier":"emo@eclipse.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-348","CWE-770","CWE-807"],"affected":[],"epss":{"score":0.00192,"percentile":0.08771,"date":"2026-10-26","history":[{"date":"2026-10-16","score":0.00192,"percentile":0.0828}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-15T18:30:14.000Z","detail":{"from":null,"score":"6.5","severity":"MEDIUM","fromSeverity":null},"summary":"Now scored CVSS 6.5 MEDIUM."},{"kind":"new","label":"New CVE","at":"2026-10-15T12:16:38.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-15T12:16:37.517Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://github.com/eclipse-ecsp/api-gateway/pull/330","source":"emo@eclipse.org"},{"url":"https://github.com/eclipse-ecsp/api-gateway/security/advisories/GHSA-ch6x-rg7q-7jfx","source":"emo@eclipse.org"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/404","source":"emo@eclipse.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-110726","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}